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/* linux/include/asm-arm/arch-s3c2410/uncompress.h
*
* Copyright (c) 2003 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* S3C2410 - uncompress code
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H
#include <asm/arch/regs-gpio.h>
#include <asm/arch/map.h>
/* working in physical space... */
#undef S3C2410_GPIOREG
#define S3C2410_GPIOREG(x) ((S3C24XX_PA_GPIO + (x)))
#include <asm/plat-s3c/uncompress.h>
/* how many bytes we allow into the FIFO at a time in FIFO mode */
#define FIFO_MAX (14)
static inline int is_arm926(void)
{
unsigned int cpuid;
asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (cpuid));
return ((cpuid & 0xff0) == 0x260);
}
static void arch_detect_cpu(void)
{
unsigned int cpuid;
cpuid = *((volatile unsigned int *)S3C2410_GSTATUS1);
cpuid &= S3C2410_GSTATUS1_IDMASK;
if (is_arm926() || cpuid == S3C2410_GSTATUS1_2440 ||
cpuid == S3C2410_GSTATUS1_2442) {
fifo_mask = S3C2440_UFSTAT_TXMASK;
fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT;
} else {
fifo_mask = S3C2410_UFSTAT_TXMASK;
fifo_max = 15 << S3C2410_UFSTAT_TXSHIFT;
}
}
#endif /* __ASM_ARCH_UNCOMPRESS_H */
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